Generates standardized Chromaprint acoustic fingerprints from audio files for copyright matching and track identification.

Normalizes audio levels to target LUFS (e.g. -23 LUFS / -16 LUFS) with integrated peak limiting for podcast, broadcast, and streaming compliance.

Separates mixed audio tracks into isolated vocals, bass, drums, and harmonic instrumental stems using DSP filter banks.

Automates real Chromium instances in sandbox mode to render dynamic JavaScript pages, returning page HTML or base64 screenshots.

Returns official public holidays for a given country and year.

Executes untrusted JavaScript expressions in an isolated, frozen Node.js VM context with 1000ms CPU timeout and memory bounds.

Checks agent DIDs and wallet addresses against US Treasury OFAC sanctions lists, returning risk scoring and compliance flags.

Returns a random trivia question with multiple-choice answers, optionally filtered by difficulty.

Evaluates order-book bid depth and estimated price slippage for stablecoin and token swaps across Base, Ethereum, and Solana.

Parses ANSI X12 and UN/EDIFACT EDI documents into structured JSON, CSV, cXML, or a rendered Typst PDF invoice. $0.01 per document in any output format; payloads ≥10MB are metered up to $0.05 — see the 402 challenge’s `accepts[].maxAmountRequired` for the exact amount.

Parses multi-page PDF documents from URLs, returning structured text content and page counts.

Locks buyer funds in a programmatic micro-escrow awaiting provider execution and cryptographic schema verification before release.

Validates provider response payloads against the locked escrow JSON schema, releasing funds to provider or auto-refunding to payer.

Delivers official European Central Bank reference exchange rates across 30+ fiat currencies with base currency selection.

Provides sub-second live spot prices and trading ticks for crypto assets and forex pairs with TTL caching.

Calculates live exchange rates and converted settlement amounts across global fiat and cryptocurrency pairs.

Converts human-readable street addresses, city names, and landmarks into precise GPS coordinates and boundary data.

Resolves postal and ZIP codes worldwide to latitude, longitude, state, province, and municipal jurisdiction data.

Finds words that rhyme with, mean similarly to, or sound like a given word.

One-call market brief for a coin (BTC, ETH, SOL, HYPE and 45+ majors): USD price and 24h change, spot 24h high/low/volume and bid/ask, perpetual funding rate (APR), open interest and perp-vs-spot basis, the Crypto Fear & Greed index, and plain-language signals (crowded longs/shorts, big moves).

Historical OHLCV candlestick data (open, high, low, close, volume) for any Coinbase spot pair such as BTC-USD or ETH-USD, at 1m, 5m, 15m, 1h, 6h or 1d intervals, up to 300 candles, oldest first.

Find DEX liquidity pools for a token contract address or search term (symbol/name) across Ethereum, Base, Solana, Arbitrum, BSC and more: price, USD liquidity, 24h volume and buy/sell counts, 1h/24h price change, FDV and market cap, sorted by liquidity.

Perpetual futures funding rates (hourly and annualized APR), open interest in USD, mark vs oracle price, premium, 24h volume and price change for every Hyperliquid perp. Filter by coin or rank by open interest, volume, or highest/lowest funding to spot crowded trades.

Live order book for a Coinbase spot pair: best bid/ask, mid price, spread in bps, USD liquidity within 1% of mid on each side, and the top bid/ask levels (up to 50). Useful for slippage and execution checks.

Live USD prices and 24h % change for up to 25 crypto tokens per call: by ticker (BTC, ETH, SOL, USDC...), CoinGecko id, or chain:address for any token on Ethereum, Base, Arbitrum, Optimism, Polygon, BSC, Solana and more.

24-hour ticker stats for a Coinbase spot pair: last price, open, high, low, % change, base and USD volume, 30-day volume, and current bid/ask.

DeFi total value locked (TVL): look up one protocol (e.g. aave-v3, uniswap-v3) for TVL, per-chain breakdown and 1d/7d change, or rank the top protocols overall, on a chain (Base, Ethereum, Solana...) or in a category (Lending, Dexs, Liquid Staking...).

Find the best DeFi yields across 500+ protocols and all major chains: filter by token (USDC, ETH...), chain, protocol, stablecoin-only and minimum TVL; returns APY (base + reward), 30-day mean APY, 7-day change, TVL, impermanent-loss risk and outlook. Sort by APY or TVL.

Evaluates complex algebraic, trigonometric, unit conversion, and matrix equations with exact deterministic precision via mathjs.

Retrieves high-resolution public-domain artwork metadata, artist biographies, historical eras, and image URLs from the Met collection.

Generates SHA-256 cryptographic authenticity digests and C2PA-compliant provenance manifests for verifiable media preservation.

Queries the open MusicBrainz music encyclopedia for artist discographies, release groups, ISRC codes, and ISNI identifiers.

Resolves A, CNAME, MX, and TXT DNS records globally via isolated public resolvers with DNS rebinding protection.

Resolves IPv4/IPv6 addresses to geographic coordinates, country, ISP, autonomous system number (ASN), and timezone.

Delivers real-time trending technology articles, developer discussions, and venture announcements directly from HackerNews.

Aggregates breaking aerospace news, orbital mission updates, rocket launch manifests, and space station research feeds.

Returns NASA's daily featured space image or video with an explanatory caption.

Check an ERC-20 token approval on base, ethereum, arbitrum, optimism, polygon, bsc: how much a spender (router, Permit2, contract) may move from an owner's wallet, whether the approval is unlimited, and whether it covers the owner's full balance.

Wallet balance lookup for any address on base, ethereum, arbitrum, optimism, polygon, bsc: native coin plus ERC-20 token balances (USDC, USDT, WETH, DAI, cbBTC or any tokens you pass) with live USD prices and total portfolio value, in one call.

Classify any address on base, ethereum, arbitrum, optimism, polygon, bsc: wallet (EOA, incl. EIP-7702 delegation) or contract, bytecode size, upgradeable proxy and implementation (EIP-1967, beacon, EIP-1167 clones), token standard (ERC-20/721/1155), Safe multisig threshold and owners, and Ownable owner.

Resolve an ENS .eth name to its address (plus avatar, url and twitter records), or an address to its verified primary ENS name. Reads Ethereum mainnet via the ENS Universal Resolver.

Live gas prices across base, ethereum, arbitrum, optimism, polygon, bsc, sorted cheapest first: base fee and gas price in gwei, plus the USD cost of a native transfer and of an ERC-20 transfer on each chain, so an agent can pick where to transact.

Solana wallet balance lookup: SOL plus every SPL and Token-2022 token held (mint, symbol, amount), with live USD prices and total portfolio value.

ERC-20 token lookup by contract address on base, ethereum, arbitrum, optimism, polygon, bsc: name, symbol, decimals, total supply, live USD price, fully diluted value, and whether the token is an upgradeable proxy (EIP-1967/EIP-1167, with implementation address).

Is this token safe to trade? One-call ERC-20 due diligence on base, ethereum, arbitrum, optimism, polygon, bsc: supply, price and FDV; owner (renounced, wallet or contract), upgradeable proxy and admin, paused state; DEX liquidity, pool age and 24h volume; plus heuristic red flags (low liquidity, new pool, upgradeable, active owner, extreme moves) rolled into a 0-100 risk score.

Look up a transaction by hash on base, ethereum, arbitrum, optimism, polygon, bsc: status (success/reverted/pending), block and timestamp, from/to, value, gas used, fee in native coin and USD, method selector, created contract, and decoded ERC-20 transfers with token symbols and amounts. Transaction and receipt in one call.

Profile any wallet in one call: ENS name, account type (wallet, EIP-7702 delegated, or contract), native and major-token balances with USD value on base, ethereum, arbitrum, optimism, polygon, bsc (plus an optional Solana address), transactions sent per chain, top holdings, total portfolio value and an activity tier.

Dispatches cross-border payouts across Base, Solana, and Ethereum with optimized gas estimation and cryptographic batch transaction hashes.

Fast semantic search over Wikipedia with caching, snippet extraction, and canonical reference URLs for agent contextual grounding.

Splits micropayment batches across multiple contributor addresses with sub-cent rounding and zero floating-point drift.